Troubleshooting Guide; Environmental Protection; Specifications - Cub Cadet 387 Operator's Manual

21” self-propelled mower
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Troubleshooting Guide

Symptom
Engine won't start
Insufficient
output is low
compression
No fuel to
combustion chamber
Spark plug fouled by
fuel
No spark or weak
spark
Low Output
Engine Overheats
1.
If the engine malfunctions, carefully examine the symptoms and the operating conditions, and use the table above
as a guide to troubleshooting.‡ Have an authorized Kawasaki dealer perform these service

Environmental Protection

To protect our environment, properly discard used batteries, engine oil, gasoline, coolant, or other components that
you might dispose of in the future.
Consult your authorized Kawasaki dealer or local environmental waste agency for their proper disposal procedure.

Specifications

Type of Engine
• Bore X Stroke
• Displacement
• Ignition system
• Starting system
• Dry weight
Specifications subject to change without notice
1.
Faulty piston, cylinder, piston ring,
and head gasket
2.
Faulty valves
3.
Loose spark plug
4.
Loose cylinder head bolts
1.
No fuel in fuel tank
2.
Blocked rue tube
3.
Blocked air vent in fuel tank cap
4.
Faulty carburetor
1.
Over-rich fuel/air mixture
2.
Clogged air cleaner
3.
Faulty carburetor
4.
Incorrect grade/type of fuel
5.
Water in fuel
1.
Faulty spark plug
2.
Faulty ignition coil
3.
Faulty engine switch
1.
Clogged air cleaner
2.
Recoil Starter or cooling air path
clogged with dirt
3.
Insufficient engine oil
4.
carbon built -up in combustion
chamber
5.
Poor ventilation around engine
Engine speed
1.
Faulty Governor
won't increase
Air-cooled, 4-stroke OHV, single cylinder, gasoline Engine
• 65 x 54mm (2.6 x 2.1 in.)
• 179mL (109. cu.in.)
• Solid-state ignition
• Recoil starter
• 13.5kg (29.lb)
Probable Cause
32
Remedy
1. Tighten properly
2. Tighten properly
3. Tighten properly
4. Tighten properly
1. Fill fuel tank
2. Clean
3. Clean
4. ‡
1. Slowly pull the recoil starter grip with
spark plug removed to discharge
excess fuel. clean spark plug
2.Clean
3.‡
4. Change Gasoline
5. Change Gasoline
1. Replace spark plug
2.‡
3.‡
1. Clean
2. Clean
3. Replenish or change oil
4.‡
5. Select a better location

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